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Launched: 31st May 1911 Total Lost: 1,502 (68%)

TITANIC. Launched: 31st May 1911 Total Lost: 1,502 (68%) Passengers Lost: 818 (62%) Crew Lost: 684 (77%). WHY did soooo many die as they awaited rescue in the North Sea?. WHY did soooo many die as they awaited rescue in the North Sea? HINT: THE NORTH SEA IS COLD!!!!!.

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Launched: 31st May 1911 Total Lost: 1,502 (68%)

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  1. TITANIC Launched: 31st May 1911 Total Lost: 1,502 (68%) Passengers Lost: 818 (62%) Crew Lost: 684 (77%)

  2. WHY did soooo many die as they awaited rescue in the North Sea?

  3. WHY did soooo many die as they awaited rescue in the North Sea? HINT: THE NORTH SEA IS COLD!!!!!

  4. Function of Cellular Respiration… harvesting the energyof food for ATP synthesis… so the cells have energy for work

  5. WHAT if there is NO electronegativeoxygen to pull electrons down the chain???? Oxidative phosporylation STOPS! GAAAAK!!!!

  6. Glucose CYTOSOL Pyruvate O2 present Cellular respiration No O2 present Fermentation MITOCHONDRION Acetyl CoA Ethanol or lactate Citric acid cycle

  7. Fermentation - the synthesis of ATP via. glycolysis ONLY in the absence of oxygen

  8. Alcohol fermentation is done by yeast and some kinds of bacteria.

  9. yeast / bacteria. The waste products of this process are ethanol and carbon dioxide (CO2).

  10. yeast / bacteria. The waste products of this process are ethanol and carbon dioxide (CO2). Humans have long taken advantage of this process in making bread, beer, and wine.

  11. Alcohol Fermentation - P 2 ADP + 2 2 ATP Glycolysis Glucose 2 NAD+ 2 NADH 2 + 2 H+ 2 Pyruvate 2 Lactate Lactic acid fermentation

  12. Carboxyl (X2) to CO2 (X2) - P 2 ADP + 2 2 ATP Glycolysis Glucose 2 NAD+ 2 NADH 2 + 2 H+ 2 Pyruvate 2 Lactate Lactic acid fermentation

  13. Acetaldehyde produced (X2) - P 2 ADP + 2 2 ATP Glycolysis Glucose 2 NAD+ 2 NADH 2 + 2 H+ 2 Pyruvate 2 Lactate Lactic acid fermentation

  14. Acetaldehyde (X2)REDUCED - P 2 ADP + 2 2 ATP Glycolysis Glucose 2 NAD+ 2 NADH 2 + 2 H+ 2 Pyruvate 2 Lactate Lactic acid fermentation

  15. Ethanol Produced (X2) - P 2 ADP + 2 2 ATP Glycolysis Glucose 2 NAD+ 2 NADH 2 + 2 H+ 2 Pyruvate 2 Lactate Lactic acid fermentation

  16. Alcohol Fermentation - P 2 ADP + 2 2 ATP Glycolysis Glucose 2 NAD+ 2 NADH 2 + 2 H+ 2 Pyruvate 2 Lactate Lactic acid fermentation

  17. Fermentation - after glycolysis (no O2 available) Lactic acid fermentation is done by some fungi, some bacteria like in yogurt, and sometimes by our muscles.

  18. Fermentation - after glycolysis (no O2 available) Lactic acid fermentation is done by some fungi, some bacteria like in yogurt, and sometimes by our muscles. Normally our muscles do cellular respiration like the rest of our bodies, using O2 supplied by our lungs and blood. However, under greater exertion when the oxygen supplied by the lungs and blood system can’t get there fast enough to keep up with the muscles’ needs, our muscles can switch over and do lactic acid fermentation. In the process of lactic acid fermentation, the 3-carbon pyruvic acid molecules are turned into lactic acid.

  19. LacticAcidFermentation - P 2 ADP + 2 2 ATP Glycolysis Glucose 2 NAD+ 2 NADH + 2 H+ 2 Pyruvate 2 Lactate Lactic acid fermentation

  20. Pyruvate (X2) reduced by NADH- P 2 ADP + 2 2 ATP Glycolysis Glucose 2 NAD+ 2 NADH + 2 H+ 2 Pyruvate 2 Lactate Lactic acid fermentation

  21. Lactate (X2) formed - P 2 ADP + 2 2 ATP Glycolysis Glucose 2 NAD+ 2 NADH + 2 H+ 2 Pyruvate 2 Lactate Lactic acid fermentation

  22. Fermentation - P 2 ADP + 2 2 ATP Glycolysis Glucose 2 NAD+ 2 NADH + 2 H+ 2 Pyruvate 2 Lactate Lactic acid fermentation

  23. Fermentation - extension of glycolysisAnaerobiccatabolism of organic molecules. • Yields only 2 ATP’s • Electrons are transferred from NADH to pyruvate(not the e- transport chain)

  24. OR...

  25. aerobic anaerobic

  26. Fermentation Why important in evolution?

  27. no oxygen 3.5bya

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